pm24.git/crypto/ecc.h, branch v5.1Unnamed repository; edit this file 'description' to name the repository.
https://git.kobert.dev/pm24.git/atom?h=v5.12018-04-20T16:58:29Zcrypto: ecc - Actually remove stack VLA usage2018-04-20T16:58:29ZKees Cookkeescook@chromium.org2018-03-30T16:55:44Zurn:sha1:d5c3b17898993c3461fb3f0497f45098ffd72ac6
On the quest to remove all VLAs from the kernel[1], this avoids VLAs
by just using the maximum allocation size (4 bytes) for stack arrays.
All the VLAs in ecc were either 3 or 4 bytes (or a multiple), so just
make it 4 bytes all the time. Initialization routines are adjusted to
check that ndigits does not end up larger than the arrays.
This includes a removal of the earlier attempt at this fix from
commit a963834b4742 ("crypto/ecc: Remove stack VLA usage")
[1] https://lkml.org/lkml/2018/3/7/621
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ecdh - add privkey generation support2017-06-10T04:04:35ZTudor-Dan Ambarustudor.ambarus@microchip.com2017-05-30T14:52:48Zurn:sha1:6755fd269d5c100b0eca420db501ae58435efd6e
Add support for generating ecc private keys.
Generation of ecc private keys is helpful in a user-space to kernel
ecdh offload because the keys are not revealed to user-space. Private
key generation is also helpful to implement forward secrecy.
If the user provides a NULL ecc private key, the kernel will generate it
and further use it for ecdh.
Move ecdh's object files below drbg's. drbg must be present in the kernel
at the time of calling.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Stephan Müller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ecc - rename ecdh_make_pub_key()2017-06-10T04:04:26ZTudor-Dan Ambarustudor.ambarus@microchip.com2017-05-30T12:37:56Zurn:sha1:7380c56d2fcaa882a0809aad075c3f9fdc3b3c50
Rename ecdh_make_pub_key() to ecc_make_pub_key().
ecdh_make_pub_key() is not dh specific and the reference
to dh is wrong.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ecc - remove unnecessary casts2017-06-10T04:04:26ZTudor-Dan Ambarustudor.ambarus@microchip.com2017-05-25T07:18:05Zurn:sha1:ad269597107e6dde4810987eebbd075778d0262c
ecc software implementation works with chunks of u64 data. There were some
unnecessary casts to u8 and then back to u64 for the ecc keys. This patch
removes the unnecessary casts.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ecc - remove unused function arguments2017-06-10T04:04:25ZTudor-Dan Ambarustudor.ambarus@microchip.com2017-05-25T07:18:04Zurn:sha1:099054d735a5e4cfc8e90b03b7422c9b48209d8b
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: kpp, (ec)dh - fix typos2017-06-10T04:04:25ZTudor-Dan Ambarustudor.ambarus@microchip.com2017-05-25T07:18:03Zurn:sha1:c0ca1215dc92ee6a0f975c95a92fb7f9fb31e9e1
While here, add missing argument description (ndigits).
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ecdh - make ecdh_shared_secret unique2016-06-24T13:24:59ZStephen Rothwellsfr@canb.auug.org.au2016-06-24T06:20:22Zurn:sha1:8f44df154de79a61b0e86734f51737b8cccf8dfe
There is another ecdh_shared_secret in net/bluetooth/ecc.c
Fixes: 3c4b23901a0c ("crypto: ecdh - Add ECDH software support")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ecdh - Add ECDH software support2016-06-23T10:29:57ZSalvatore Benedettosalvatore.benedetto@intel.com2016-06-22T16:49:15Zurn:sha1:3c4b23901a0c766879dff680cd6bdab47bcdbbd2
* Implement ECDH under kpp API
* Provide ECC software support for curve P-192 and
P-256.
* Add kpp test for ECDH with data generated by OpenSSL
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>